ML24141A282
| ML24141A282 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 05/20/2024 |
| From: | James Holloway Dominion Energy South Carolina |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| 24-190 | |
| Download: ML24141A282 (1) | |
Text
Dominion Energy South Carolina, Inc.
5000 Dominion Boulevard, Glen Allen, VA 23060 DominionEnergy.com May 20, 2024 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Dominion Energy' Serial No.24-190 NRA/SS RO Docket No.
50-395 License No.
NPF-12 DOMINION ENERGY SOUTH CAROLINA, INC. (DESC)
VIRGIL C. SUMMER NUCLEAR STATION (VCSNS) UNIT 1 LICENSE AMENDMENT REQUEST - EMERGENCY RESPONSE ORGANIZATION (ERO) AUGMENTATION TIME CHANGE, EMERGENCY OPERATIONS FACILITY RELOCATION AND OTHER EMERGENCY PLAN CHANGES SUPPLEMENTAL RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION By letter dated June 8, 2023 (Agencywide Document Access and Management System Package Accession No. ML23159A233), Dominion Energy South Carolina, Inc.
(DESC), submitted a license amendment request (LAR) regarding a revision to the emergency plan for Virgil C. Summer Nuclear Station (VCSNS) Unit 1.
By letter dated March 26, 2024 (ADAMS Accession No. ML24087A218), DESC provided the response to a request for additional information (RAI) from the NRC.
Based on clarifying discussion with the NRC, DESC has decided to supplement the response to question RAl-1. provides DESC's supplemental response to the RAI. Marked-up and clean copy revisions to the affected pages of the VCSNS Emergency Plan are provided in Attachments 2 and 3, respectively.
Serial No.24-190 Docket No. 50-395 Page 2 of 3 If you have any questions or require additional information, please contact Mr. Shayan Sinha at (804) 273-4687.
Sincerely, James E. Holloway Vice President-Nuclear Engineering and Fleet Support COMMONWEAL TH OF VIRGINIA COUNTY OF HENRICO The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by Mr. James E. Holloway, who is Vice President - Nuclear Engineering & Fleet Support, of Dominion Energy South Carolina, Inc. He has affirmed before me that he is duly authorized to execute and file the foregoing document in behalf of that company, and that the statements in the document are true to the best of his knowledge and belief.
Acknowledged before me this 1.o-\\h day of
(',/\\e,,. 'f My Commission Expires:
"J°o.nuO.Y\\f 'o I, 2,028.
KATHRYN HILL BARRET I
NOTARY PUBLIC COMMONWEALTH OF VIRGINIA
- MY COMMISSION EXPIRES JANUARY 31, 2021 Commitments made in this letter: None Attachments:
, 2024.
el:4'.1J- -1oemoi Notary Public
- 1.
Supplemental Response to Request for Additional Information
- 2.
Virgil C. Summer Nuclear Station Unit 1, Marked-up Emergency Plan Pages
- 3.
Virgil C. Summer Nuclear Station Unit 1, Clean Emergency Plan Pages
cc:
U.S. Nuclear Regulatory Commission, Region II Marquis One Tower 245 Peachtree Center Avenue, NE Suite 1200 Atlanta, Georgia 30303-1257 Mr. G. Edward Miller NRC Senior Project Manager U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 09 E-3 11555 Rockville Pike Rockville, Maryland 20852-2738 Mr. Zach M. Turner NRC Project Manager U.S. Nuclear Regulatory Commission One White Flint North Mail Stop 0-08 B01A 11555 Rockville Pike Rockville, Maryland 20852-2738 NRC Senior Resident Inspector V.C. Summer Nuclear Station Mr. Nathan Gauthier Section Manager Bureau of Radiological Health Serial No.24-190 Docket No. 50-395 Page 3 of 3 South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, SC 29201 Mr. G. J. Lindamood Santee Cooper - Nuclear Coordinator 1 Riverwood Drive Moncks Corner, SC 29461
Serial No.24-190 Docket No. 50-395 ATTACHMENT 1 Supplemental Response to Request for Additional Information
DOMINION ENERGY SOUTH CAROLINA VIRGIL C. SUMMER NUCLEAR STATION UNIT 1
Serial No.24-190 Docket No. 50-395, Page 1 of 2 By letter dated June 8, 2023 (Agencywide Document Access and Management System Package Accession No. ML23159A233), Dominion Energy South Carolina, Inc. (DESC),
submitted a license amendment request (LAR) regarding a revision to the emergency plan for Virgil C. Summer Nuclear Station (VCSNS) Unit 1.
By letter dated March 26, 2024 (ADAMS Accession No. ML24087A218), DESC provided supplemental information in response to a request for additional information (RAI) from the NRC. Based on clarifying discussion with the NRC, DESC has decided to supplement the response to question RAI-1.
This attachment provides DESCs supplemental responses to the RAI.
=
Background===
Question RAI-1 from the NRCs RAI dated March 1, 2024 (ML24061A189) requested clarification on how the Shift Manager will be relieved of either the Shift Manager or Emergency Director functions (command and control) within 60 minutes of an alert or higher classification. DESC provided a response to RAI-1 by letter dated March 26, 2024 (ADAMS Accession No. ML24087A218).
The NRC reviewer requested additional clarification on RAI-1 regarding how the additional responsibilities for oversight of the 60-minute RP and Maintenance responders will be handled during the time between 60 and 90 minutes, to allow the Shift Manager to focus on emergency functions.
Dominion Supplemental Response to RAI-1 DESC proposes to amend its RAI-1 response related to performance of the oversight function for responders augmented at 60-minutes.
The Dose Assessment Team Leader, who is already identified as a 60-minute responder, will provide oversight of on-shift and augmented 60-minute RP Technicians.
DESC also proposes to revise Table B-1a of the VCSNS Emergency Plan to assign the OSC Director position as a 60-minute responder instead of a 90-minute responder. This will allow the OSC Director to provide oversight of the 60-minute Mechanical and Electrical Maintenance responders.
These positions will provide additional support to the Shift Manager during the period between 60 and 90 minutes after an event, until augmented by the Technical Support Center (TSC) Station Emergency Manager and Technical Support Manager in the Corporate Emergency Response Center (CERC). Clean and marked-up copies of the
Serial No.24-190 Docket No. 50-395, Page 2 of 2 revised Table B-1a and Figure B-1b showing these changes are included in Attachments 2 and 3, respectively.
Serial No.24-190 Docket No. 50-395 ATTACHMENT 2 Virgil C. Summer Nuclear Station Unit 1
Marked-up Emergency Plan Pages
DOMINION ENERGY SOUTH CAROLINA VIRGIL C. SUMMER NUCLEAR STATION UNIT 1
Serial No.24-190 Docket No. 50-395, Page 1 of 2 Functional Area Major Tasks Emergency Positions Shift 60 90 Staffing Minutes Minutes Shift Manager (SRO) 1 Emergency Direction and Classification/Oversight Station Emergency Manager (TSC) 1 Control Emergency Operations Director (TSC) 1 Technical Support Manager (CERC) 1 Emergency Communicator 1
Notification &
Licensee, Local/State & Federal State/Local Communicator (TSC) 1 Communication NRC Emergency Communicator (CR/TSC) 1 State/local Communicator (CERC) 1 Shift Dose Assessor 1*
Radiological Assessment Director (TSC) 1 Offsite Dose Assessment Dose Assessment T earn Leader (TSC) 1 Radiological Assessment Coordinator (CERC) 1 Radiological Accident Dose Assessor (CERC) 1 Assessment Operations Support Coordinator (CERC) 1 Offsite Surveys Offsite Monitoring Leader 1
1 Offsite Monitoring Driver 1
1 In-plant / On-Site (out-of-plant)
RP Technician 2
3 3
Surveys and Protective Actions Shift Technical Advisor (SRO/STA) 1 Plant System Technical Support Reactor Engineer (TSC) 1 Engineering Electrical Engineer (TSC) 1 Mechanical Engineer (TSC) 1 Mechanical Maintenance (OSC) 1 Electrical Maintenance (OSC) 1 l&C Maintenance (OSC) 1 OSC Director (OSC) 1=-
~
-4 Repair and Corrective Repair and Corrective Actions Mech. Maintenance Coordinator (OSC) 1 Elec. Maintenance Coordinator (OSC) 1 l&C Maintenance Coordinator (OSC) 1 Site RP Coordinator (OSC) 1 TOTAL:
5 910 22~
- May be performed by someone filling another position having functional qualifications
Serial No.24-190 Docket No. 50-395, Page 2 of 2
-Eriiergency- - ]
osc Maintena1ce ~---------
Director I
Director I
Radiological Operations Electrical Mechanical Instrument Protection Coordinator Coordinator Coordinator Coordinator Coordinator RP EM MM IM Supervisor ~--1 I
____ L ___,
I I On-Shift RP :
Personnel L ________
RP RP Tech Tech
- Shaded box is Min Staff for facility activation
- Double boxed positions are 60-minute responders RP RP
- Single boxed positions are 90-minute responders Tech Tech
- Dotted lines indicate organizational links between Emergency Response Facilities or on-shift resources RP RP Tech Tech
Serial No.24-190 Docket No. 50-395 ATTACHMENT 3 Virgil C. Summer Nuclear Station Unit 1
Clean Emergency Plan Pages
DOMINION ENERGY SOUTH CAROLINA VIRGIL C. SUMMER NUCLEAR STATION UNIT 1
Serial No.24-190 Docket No. 50-395, Page 1 of 2 Functional Area Major Tasks Emergency Positions Shift 60 90 Staffinq Minutes Minutes Shift Manager (SRO) 1 Emergency Direction and Classificati on/Oversight Station Emergency Manager (TSC) 1 Control Emergency Operations Director (TSC) 1 Technical Support Manager (CERC) 1 Emergency Communicator 1
Notification &
Licensee, Local/State & Federal State/Local Communicator (TSC) 1 Communication NRC Emergency Communicator (CR/TSC) 1 State/local Communicator (CERC) 1 Shift Dose Assessor 1*
Radiological Assessment Director (TSC) 1 Offsite Dose Assessment Dose Assessment Team Leader (TSC) 1 Radiological Assessment Coordinator (CERC) 1 Dose Assessor (CERC) 1 Radiological Accident Operations Support Coordinator (CERC) 1 Assessment Offsite Surveys Offsite Monitoring Leader 1
1 Offsite Monitoring Driver 1
1 In-plant/ On-Site (out-of-plant)
RP Technician 2
3 3
Surveys and Protective Actions ShiftTechnical Advisor (SRO/STA) 1 Plant System Technical Support Reactor Engineer (TSC) 1 Engineering Electrical Engineer (TSC) 1 Mechanical Engineer (TSC) 1 Mechanical Maintenance (OSC) 1 Electrical Maintenance (OSC) 1 l&C Maintenance (OSC) 1 OSC Director (OSC) 1 Repair and Corrective Repair and Corrective Actions Mech. Maintenance Coordinator (OSC) 1 Elec. Maintenance Coordinator (OSC) 1 l&C Maintenance Coordinator (OSC) 1 Site RP Coordinator (OSC) 1 TOTAL:
5 10 22
- May be performed by someone filling another position having functional qualifications
Serial No.24-190 Docket No. 50-395, Page 2 of 2 Radiological Operations Protection Coordinator Coordinator RP Supervisor I
I 1--- _L ___,
1 On-Shift RP I
1 Personnel L ________
RP RP Tech Tech RP RP Tech Tech RP RP Tech Tech osc Director I
I I
I Electrical Mechanical lnstru 1ment linator Coordinator Coordinator Coard I
I I
EM MM II M
- Shaded box is Min Staff for facility activation
- Double boxed positions are 60-minute responders
'S
- Single boxed positions are 90-minute responders
- Dotted lines indicate organizational links between Emergency Response Facilities or on-shift resources rces